From: Douglas Gilbert <dougg@torque.net>
To: Thayne Harmon <THARMON@novell.com>
Cc: linux-scsi@vger.kernel.org
Subject: Re: no utility / method to show association between host bus adapter and non-sg BLOCK devices
Date: Thu, 11 Jan 2007 15:15:18 -0500 [thread overview]
Message-ID: <45A69AD6.60207@torque.net> (raw)
In-Reply-To: <45A62C32.8E7F.00B8.0@novell.com>
Thayne Harmon wrote:
> Gentlemen,
>
> hwinfo, lshal, sysfs do not show the relationship for non-sg BLOCK devices with there
> associated Host Bus Adapter.
All devices (i.e. logical units) have a 4 element tuple
associated with them and the first element is the host
number. A HBA contains one or more hosts. Then you can
datamine in /sys/class/scsi_host/host<n> for whatever
information you want.
> Do you know of a utility or method that can show this?
May I suggest lsscsi. That won't help you in the lk 2.4
series and earlier though There are other methods by
which the sg device corresponding to a "non-sg" block
device (e.g. /dev/sdc) can be found.
> Example is the HP/Compaq CCISS block driver.
>
> The HBA and devices are listed, but no association is given or can be determine,
> only by the user knowing which is which.
>
> The kernel certainly knows, surely the above apps could be made to
> determine this or some utility exits that will show this?
See http://www.torque.net/scsi/lsscsi.html
Doug Gilbert
next prev parent reply other threads:[~2007-01-11 20:15 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-10 16:16 IO transfer limits john clyne
2007-01-10 17:40 ` Mike Christie
2007-01-10 23:47 ` john clyne
2007-01-11 1:15 ` Douglas Gilbert
2007-01-11 16:13 ` Stefan Richter
2007-01-11 21:50 ` Douglas Gilbert
2007-01-12 0:54 ` Stefan Richter
2007-01-12 22:27 ` john clyne
2007-01-10 18:38 ` Douglas Gilbert
2007-01-10 23:07 ` john clyne
2007-01-11 18:23 ` James Bottomley
2007-01-11 19:48 ` john clyne
2007-01-12 1:17 ` James Bottomley
2007-01-11 19:23 ` no utility / method to show association between host bus adapter and non-sg BLOCK devices Thayne Harmon
2007-01-11 20:15 ` Douglas Gilbert [this message]
[not found] ` <45AE22E0.DB3A.00B8.0@novell.com>
2007-01-17 21:04 ` no utility / method to show association between HBA & non-sg BLOCK (scsi) devices - register_blkdev() Douglas Gilbert
2007-01-17 22:06 ` Andrew Patterson
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